{
  "manageEntity": {
    "action": "Subscribe",
    "entityId": "502388335",
    "entityType": "User",
    "nonce": "0x6dd5c5818f917174cfe4bd224ba61baceb2255c142f81349ce88e809f6d80fdb",
    "signature": "0x74b54f65732d3d1cc17c760ad5d510d8eaebf05eb2887b0a94bdfae3fb4f67c9353d78c2a6a4452ba08773c431474384229e3c80114c434477ee93f435b903c31b",
    "signer": "0x36d29AA5C780341f3b35bDE6c1411a7Abcf8794C",
    "userId": "571117272"
  }
}